PCM3002E/2K集成电路（IC）的编解码器规格书PDF中文资料

PCM3002E/2K属于集成电路（IC）的编解码器。由美国德州仪器公司制造生产的PCM3002E/2K编解码器编解码器是用于通过压缩和解压缩来转换数据的半导体器件。数据压缩可提高传输速度并减少存储空间。某些编解码器提供高达 32 位的分辨率，并且分别提供多达 6 个或 8 个模数转换器和数模转换器。除三角积分调制外，还有 I2C、I2S、SPI、串行、HDA、S/DIF、PCM、USB、AC'97 和 SLIMbus 数据接口。

FEATURES

· Monolithic 20-Bit DS ADC and DAC

· 16/20-Bit Input/Output Data

· Software Control: PCM3002

· Hardware Control: PCM3003

· Stereo ADC:

– Single-Ended Voltage Input

– Antialiasing Filter

– 64´ Oversampling

– High Performance

· THD+N: –86 dB

· SNR: 90 dB

· Dynamic Range: 90 dB

· Stereo DAC:

– Single-Ended Voltage Output

– Analog Low-Pass Filter

– 64´ Oversampling

– High Performance

· THD+N: –86 dB

· SNR: 94 dB

· Dynamic Range: 94 dB

· Special Features (PCM3002, PCM3003)

– Digital De-Emphasis: 32 kHz, 44.1 kHz,

48 kHz

– Power Down: ADC/DAC Independent

· Special Features (PCM3002)

– Digital Attenuation (256 Steps)

– Soft Mute

– Digital Loopback

– Four Alternative Audio Data Formats

· Sampling Rate: 4 kHz to 48 kHz

· Single 3-V Power Supply

· Small Package: SSOP-24

APPLICATIONS

· DVC Applications

· DSC Applications

· Portable/Mobile Audio Applications

DESCRIPTION

The PCM3002 and PCM3003 are low-cost,

single-chip stereo audio codecs (analog-to-digital and

digital-to-analog converters) with single-ended analog

voltage input and output.

The ADCs and DACs employ delta-sigma modulation

with 64-times oversampling. The ADCs include a

digital decimation filter, and the DACs include an

8-times oversampling digital interpolation filter. The

DACs also include digital attenuation, de-emphasis,

infinite zero detection, and soft mute to form a complete subsystem. The PCM3002 and PCM3003

operate with left-justified (ADC) and right-justified

(DAC) formats, while the PCM3002 also supports

other formats, including the I2S data format.

The PCM3002 and PCM3003 provide a power-down

mode that operates on the ADCs and DACs indepen- dently.

The PCM3002 and PCM3003 are fabricated using a

highly advanced CMOS process, and are available in

a 24-pin SSOP package. The PCM3002 and

PCM3003 are suitable for a wide variety of

cost-sensitive consumer applications where good performance

is required.

The PCM3002 programmable functions are controlled

by software. The PCM3003 functions, which are

controlled by hardware, include de-emphasis,

power-down, and audio data format selections.